Wrapping-machine.



G. I. HOHL.

' WRAPPING MACHINE.

- 7 APPLICATION FILED AUG. 30. 1912.

1,955,461 a Patented Mar. 11, 1913.

2 SHEETSSHEET 1.

G. I. HOHL. WRAPPING MACHINE. APPLIGATION FILED AUG. 30, 1912.

1,055,461, Patented Mar. 11,1913.

2 BHEBT8-BHEET 2.

y a 31 Wm. 33 i 31 5 my? fi WITNESSES:

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ATTORNEYS.

UNITE STATES PATENT OFFICE.

"GEoReE I. HOHL, OF NEWARK, NEW JERSEY, .AssIeNoE T0 NEWAEE 'WRAPPINGMACHINE oo., A' CORPORATION or NEW JERSEY. 1

WRAPPING-MACHINE.

Specification of Letters Patent.

Patented Mar. 11, 1913.

Application filed August 30, 1912. Serial No. 717,881.

To all whom, it may concern:

Be it known that I, GEORGE I. HOHL, citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and'useful Improvements in Wrapping-Machines; and Ido hereby declare the following to be a full, clear, andexactdescription of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to characters of reference markedthereon, which form a part of this specification.

The present invention has reference, generally, to improvements inautomatic wrapping machines; and, the invention relates,

more particularly, to a novel means for providing numerous articles,such, for example, as chewing-gum, candy, soap, and the like, withsuitable enveloping wrappers.

The present invention has for its principal object to provide a noveland improved construction of means whereby the several wrapping folds ofthe enveloped article may be improved; and, furthermore, to provide ameans whereby a particularly tight, complete, compact, and secureinterfolding of the wrapper about an article is produced.

Other objects of the present invention not at this time moreparticularly enumerated, will be clearly understood from the followingdetailed description of the present invention. 1

With the various objects of the present invention in view, the sameconsists, primarily, in the novel wrapping elements for wrappingmachines hereinafter set forth; and, furthermore, this inventionconsists .in the novel arrangements and combinations of the variousdevices and parts, as well as in the details of the construction of thesame, all of which will be more fully described in the followingspecification, and then finally embodied in the clauses of the claimwhich are appended to and which form an essential part of thisspecification. The invention is clearly'illustrated in the accompanyingdrawings, in which Figure 1 is a detail front elevation of a tuck-foldwrapping roll made according to and embodying the principles of thepresent invention. Fig. 2 is a horizontal section, taken on line 22 insaid Fig. 1, said view including the means for producing the endfolds ofthe wrapper enveloping the article operated upon. Fig. 3 is a verticallongitudinal section, taken on line 3% in said Fig. 2; Fig. 4 is adetail cross-section, taken on line H in said Fig. 3, looking in thedirection of the arrow a2; and Fig. 5 is another cross-section, taken online 55 in said Fig. 3, also looking in the direction of the arrow w.Figs. 6, 7 and 8 illustrate the type of folds produced by the novelwrapping mechanism, during various stages of the operation of the same.

Similar characters of reference are employed in all of the herein-abovedescribed views to indicate corresponding parts.

The novel construction of wrapper foldproducing elements comprising thepresent invention are adapted to be used in connection with varioustypesfof wrapping machines, but are more particularly adapted for use inconnection with that class .of wrapping machines, illustrated anddescribed in my former application for Letters-Patent Serial No.671,694., filed Jan. 17, 1912; and, the application of the presentinvention thereto will be readily understood,

the present invention consists of a rotary wrapping-roll orcylinder 1,the same being provided with a transverse or diametrically disposedopening or slot 2. Arranged within saidv opening or slot 2, so as to bemaintained against the end-walls of said opening or slot, aretuck-producers comprising a chamfered body-portion 3, the inclined sides4 of which converge toward the free end 5 of said body-portion, and eachend of said body-portion being further provided with a rearwardlyinclined guide-surface 6, which is formed by chamfering the end of saidbody-portion. Each body-portion is provided adjacent to its respectiveends with rearwardly extending lugs 7 which are re-\ ceived in properlydisposed receiving sockets 8 adjacent to said opening or slot 2.Suitable fastening means, such as the screws 9, are passed through saidlugs 7 and into the body of said wrapping-roll or cylinder 1, wherebysaid tuck-producers are secured in their proper positions within thesaid slot or opening 2 of the roll or cylinder. Arranged within saidopening or islot2, so as be niaintained'against longitudinal surfaces or'walls'of saidopen ing or slot, are plates 10, the same being secured inplace by means 'of's'uitable-fastenbeing preferably provided wit slottedopen ing devices, such as screws. 11. Each plate:

ings 14. Slidably arranged within said slot or opening 2 of the, roll orcylinder 1' is a;

push or ejector-plate 15,'- the same being prochannels 16, in which thesaidleaf-sprmgs 'vided upon. its opposite faces with grooves or Y 13ride, the tension or pressure of s'aid leafsprings as they bear againstsaid "ppsh or ejector-plate tending to maintain the same in its '9proper operative positin, while the roll or cylinder performs its rotarymovements. Connected with said pushor'ejector-plate 15 are guide pinsfl, the ends of which pro- 1 ject above the respective faces of saidpush .5 on ejector-plate and penetrate or project into said slottedopenings 14 of the leaf springs 13,- thereby serving to properly guidethemovements of said push or e-jec- F tor-plate, and at the same timeretaining the same in its operative connectionwithi relation, to thesaid wrapping-roll or cylf I m v I V into said slot or opening 2, bysuitable me The reference-character 18i11dicates the inder 1.

bed-plates for supporting the article and its J5 wrapper when the same,are ejected from said rotary wrapping-roll or cylinder 1.

Said'bed-plates 18aresepa'rated by a 1011-" gitudinally extendingintervening space 19,

. through which suitable propelling mecha- (Wnismir'ntty be. caused to--engage and propel the article through the end-fold elements which areconnected with the said bedplates, and which will besubsequentlydescribed, Sup orte'd upon the forward end 1 of said bedates18, and adjacent to said rotary wrapping-roll or cylinder 1, is afolding bar 20, beneath tvhichthe article J and'its wrapper is passed inthe course of I the wrapping operations. Arranged beof tuck-producers,each comprising a main body portion or block 21 supported 'upon saidbed-plate 18,'the tuck-producing por-' tion of each'body-portion orblock project ing inwardly into the passage 22 through which the articleand its wrapper is pro-' neath said folding bar 20, which is prefer-gably supported thereupon, areanother pair the free end 25 of the saidbody portion 23, 4

and the end of said cha nfered body-por-- to the shape of the article tobe, wrapped;

the wrapper which project beyond the ends to em tions 23 toward thewrapping roll or cylinder 1, (Bing-further provided with a rear- Wardly'inclinedguide-surface 26, which is formed by chamfering the ends of saidbody-portion 23.. Supported upon said bedplates 18, adjacent to saidfolding bar 20 and the said tuck-producers connected therewith, are apair of end'fold-turning plates, the same comprising the body-portions27 which lie in the plane of said bed-plates,

and the turn-o'ver'portions- 28 which are turned up'wardlyiand towardeach other until, at their outer" ends 29, they converge together 'andparallel the said bed plates -18,thusforming a passage 30 conformingand, which, when the article andits wrapper is passed therethrough,completes the final folds of the wrapper about the article it envelops,The said turn-over portions 28 are secured in proper position to saidbed-plates .18- by any suitable fastening means, suchas suitableangle-brackets or retaining lugs 31.

The operation of the herein-above described fold-producing elements, inenveloping an article to be wrapped in a suitable wrapper, is as follows-A suitable wrapper is fed across the mouth of the slot or opening 2 ofsaid wrapping-roll or cylinder, 1, 9'5 and then an article to be wrappedis pressed chanical 1neans,'carry1ng therewith the said wrapper. Thevfree ends 5' of said tuck-producers, arranged within said slotoropening i 2, are spaced apart from each other at a distance slightlygreater than the width" of the article to bewrapped. Consequently, whenthe article 32 and its wrapper 33'is pressed into the said slot oropening. 2, the ends of of 'said article, ,are engaged by the guidesurfaces 6, and are then bent or pressed inwardly against theends of thearticle'by contact. with the free ends 5 of said tuck} producers, thusproducin the end-tucks 34. of the Wrapper and the rst fold 35 of thewrapper about the article, :as illustrated in Fig. 6 of the drawings.The'article and its wrapper are now within the slot or open- '115 ing 2with an unfolded portion 36 of the wrap er projecting exteriorly of theroll or cylin er 1, When thusarranged, the wrapping roll or cylinder iscaused to make a alf-i'evolution or turn, which carries the arti'cle andits wrapper' into registrationwith the passage 22 beneath the foldingbar"20,

and at'the same time carries the'e'xteriorly projectin end 36 of saidwrapperfiigainst said folding bar 21, which turns the. Same upwardly andacross the forward end of the article, and at right angles to thebody'of the article. Whenthe roll is in this posi tion, a second articleandits wrapper is .fed into said slot or'openin'g, 2, 1n the manner 13)first-above described, and this second article and wrapper in enteringsaid slot or opening 2, presses against said push .or ejector-plate 15arranged within the slot, and causes the same to eject the first articleand its wrapper from the slot or opening 2, and into said passage 22. Inentering said passage 22, the end 36 of the wrapper is pressed by thefolding bar 20 across the top of the article, and the tuck-producersarranged beneath said folding bar and projecting into said passage 22engage the fold of the wrapper projecting beyond the ends of the articleand produce the end-tucks 37 and a second fold'of the wrapper, asillustrated in Fig. 7 of the drawings. These operations being completed,a suitable propelling mechanism now engages the article and its-wrapperand carries the same forward through the end foldturning elements. Thearticle and wrapper are thus carried into contact with the turn-overportions 28, which engage the outwardly projecting end folds 38 of thewrapper and turn them upwardly across the ends of the article, until thearticle and wrapper are finally passed through the passage 30, whereinthe end-folds 38 are engaged by the converging outer ends 29 of saidfold-turning plates, and the folds thereupon are turned over and acrossthe top of the article, completing the wrapping of the article, as shownin Fig. 8 of the drawings.

I am aware that changes may be made in the general arrangements andcombinations of the various devices and parts, as well as in the detailsof the construction of the same, without departing from the scope of thepresent invention, as set forth in the foregoing specification and asdefined in the appended claims. Hence, I do not limit my invention tothe exact arrangements and combinations of the devices and parts asdescribed in the said specification, nor do I confine myself to thedetails of the construction of the said parts as illustrated in theaccompanying drawings.

I claim I 1. In a wrapping machine, means for producing the envelopingfolds of a wrapper comprising a rotary wrapping-roll provided with adiametrically disposed opening, tuckproducers connected with theend-walls of said opening and projecting within said opening, anejector-plate arranged to reciprocate transversely within said openingand between said tuck-producers, a folding-bar adjacent to said rotarywrapping-roll, tuckproducers arranged beneath said folding bar and inregistration with the opening of said wrapping-roll, and means adjacentto said folding bar for turning over the end-folds of said wrapper.

2. In a wrapping machine, means for-producing the enveloping folds of awrapper comprising a rotary wrappingroll provided with a diametricallydisposed opening, tuckand the tuck-producers of said wrappingroll, andend-fold turning plates supported upon said bed-plates, said end-foldturning plates being provided with turn-over 'portions turned upwardlyand toward each other, and converging together at their outer ends toform a passage conforming in shape to the article to be wrapped.

3. In a wrapping machine, a folding element comprising a rotary wrappingroll provided with a diametrically disposed opening, tuck-producersconnected with the end walls of said opening and provided with inclinedsides converging toward their free'en ds, rearwardly inclinedguide-surfaces formed at each end of each tuck-producer, the free endsof said tuck-producers being spaced apart slightly more than the widthof the article to be wrapped, and an ejector-plate arranged toreciprocate transversely within said opening and between the free endsof said tuck-producers.

4. In a wrapping machine, a folding element comprising a rotary wrappingroll provided with a diametrically disposed opening, tuck-producersconnected with the end-walls of said opening and provided with inclinedsides converging toward their free ends, rearwardly inclinedguide-surfaces end-walls of said openingand provided with inclined sidesconverging toward their free ends, rearwardly inclined guide-surfacesformed at each end of each tuck-producer, the free ends of'saidtuck-producers being spaced apart slightly more than the width of thearticle to be wrapped, and an ejectorplate arranged to reciprocatetransversely within said opening and between the free ends of saidtuck-producers, leaf-springs arranged within said opening and adapted toengage said ejector-plate with a slight ten- .sio'n or pressure,and'meana for guiding and limiting the reciprocatory movements of saidejector-plate.

inclined. sides converging toward their free ends, rearwardly inclinedguide-surfaces formed at each end of each tuck-producer,

pins projecting from the surface 0 vthe free ends of said tuck-producersbeing spaced apart slightly more than the width of the article to bewrapped, and an ejectorplate arranged to reciprocate transversely withinsaid opening and between the free ends of said tuck-producers,--leaf-springs arranged within said opening and-adapted to engage saidejector-plate with a slight ten sion or pressure, means for guiding andlimiting the reciprocatory movements of said ejector-plate comprisingthe-provision of a slot in said leaf-springs, and idesaid ejector-plateand adapted to ride in said slots of said leaf-springs. 1

7. In a wrapping machine, folding elements, each element comprising arotary wrapping roll provided with a diametrically disposed opening,tuck-producers connected with the end-walls of said opening and provided with inclined sides converging toward their free ends, rearwardlyinclined guide-surfaces formed at each end of each tnek-producenthe freeends of said tuckproducers being spacedapart slightly more than thewidth of the article to be wrapped, J

. supported upon said bed-plates, tuck-pro- .ducers arranged beneathsaid folding bar and in registration with the opening and tnck produceisof said wrapping-roll, said tuck-producers being provided with inclinednoaaaei sides converging toward their a e ends, and

rearwardly inclined guidosurfaces. at the forward end of eachtuck-producer, the free ends of said tuck-producers being spaced articletobe wrapped.

8. In a wrapping machine, folding elemerits, each element comprising arotary wrapping roll provided with a diametrically disposed opening,tuckrodueers connected with the end-"walls of said opening and providedwith inclined sides converging toward their free ends, reaiwardlyinclined guidesurfaces formed at-each end of each tuckproducer, the freeends of said tnclr-prdducers being spaced apart slightly more than thewidth ot the article tobe wrapped, and an ejector-plate arranged toreciprocate transverselywithin said opening and between the free ends ofsaid tuck-producers,

leaf-springs arranged within said opening and adapted to engage saidejector-plate with a slight tension or pressure, and means for guidingand limiting the reciprocatory movements of said ejector-plate,bed-plates adjacent to said w'rappingqoll, a folding bar supported uponsaid bed p-lates, tuck producers arranged beneath said folding bar andin registration with the opening and tuck-producers of saidWrapping-roll, said tuck-producers being provided withinclined sidesconverging toward their free ends, and rearwardly inclinedguide-surfaces at the forward end of each tuck-producer, the free endsof said tuck-producers bein spaced 7 apart slightly more than the widtof the article to be wrapped, and end-fold turning plates supported 11on said lo ed-plates said end-fold turning-p ates being provided withturn-over portions turned upwardly and toward each other, and convergingtogether at theirv outer ends to form a passage con oi'fning in shape tothe article to be wrapped. In testimony, that I claim the invention 95set forth above I have hereunto set my hand this 9th dayof May 1,912. gI p I i GEORGE i. nonn- Witiiesses: n

- G, FMENTZED,

Fianna. H.- Wt FEN'JEEEM apart slightly more than the width of the

